20422800

素因数分解:

$2^4\times 3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:119

約数の個数: 240

約数和(自身を含む): 76264960

約数和(自身を除く): 55842160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 31, 36, 40, 45, 48, 50, 54, 60, 61, 62, 72, 75, 80, 90, 93, 100, 108, 120, 122, 124, 135, 144, 150, 155, 180, 183, 186, 200, 216, 225, 240, 244, 248, 270, 279, 300, 305, 310, 360, 366, 372, 400, 432, 450, 465, 488, 496, 540, 549, 558, 600, 610, 620, 675, 720, 732, 744, 775, 837, 900, 915, 930, 976, 1080, 1098, 1116, 1200, 1220, 1240, 1350, 1395, 1464, 1488, 1525, 1550, 1647, 1674, 1800, 1830, 1860, 1891, 2160, 2196, 2232, 2325, 2440, 2480, 2700, 2745, 2790, 2928, 3050, 3100, 3294, 3348, 3600, 3660, 3720, 3782, 4185, 4392, 4464, 4575, 4650, 4880, 5400, 5490, 5580, 5673, 6100, 6200, 6588, 6696, 6975, 7320, 7440, 7564, 8235, 8370, 8784, 9150, 9300, 9455, 10800, 10980, 11160, 11346, 12200, 12400, 13176, 13392, 13725, 13950, 14640, 15128, 16470, 16740, 17019, 18300, 18600, 18910, 20925, 21960, 22320, 22692, 24400, 26352, 27450, 27900, 28365, 30256, 32940, 33480, 34038, 36600, 37200, 37820, 41175, 41850, 43920, 45384, 47275, 51057, 54900, 55800, 56730, 65880, 66960, 68076, 73200, 75640, 82350, 83700, 85095, 90768, 94550, 102114, 109800, 111600, 113460, 131760, 136152, 141825, 151280, 164700, 167400, 170190, 189100, 204228, 219600, 226920, 255285, 272304, 283650, 329400, 334800, 340380, 378200, 408456, 425475, 453840, 510570, 567300, 658800, 680760, 756400, 816912, 850950, 1021140, 1134600, 1276425, 1361520, 1701900, 2042280, 2269200, 2552850, 3403800, 4084560, 5105700, 6807600, 10211400, 20422800]

約数ペア:

[(1, 20422800), (2, 10211400), (3, 6807600), (4, 5105700), (5, 4084560), (6, 3403800), (8, 2552850), (9, 2269200), (10, 2042280), (12, 1701900), (15, 1361520), (16, 1276425), (18, 1134600), (20, 1021140), (24, 850950), (25, 816912), (27, 756400), (30, 680760), (31, 658800), (36, 567300), (40, 510570), (45, 453840), (48, 425475), (50, 408456), (54, 378200), (60, 340380), (61, 334800), (62, 329400), (72, 283650), (75, 272304), (80, 255285), (90, 226920), (93, 219600), (100, 204228), (108, 189100), (120, 170190), (122, 167400), (124, 164700), (135, 151280), (144, 141825), (150, 136152), (155, 131760), (180, 113460), (183, 111600), (186, 109800), (200, 102114), (216, 94550), (225, 90768), (240, 85095), (244, 83700), (248, 82350), (270, 75640), (279, 73200), (300, 68076), (305, 66960), (310, 65880), (360, 56730), (366, 55800), (372, 54900), (400, 51057), (432, 47275), (450, 45384), (465, 43920), (488, 41850), (496, 41175), (540, 37820), (549, 37200), (558, 36600), (600, 34038), (610, 33480), (620, 32940), (675, 30256), (720, 28365), (732, 27900), (744, 27450), (775, 26352), (837, 24400), (900, 22692), (915, 22320), (930, 21960), (976, 20925), (1080, 18910), (1098, 18600), (1116, 18300), (1200, 17019), (1220, 16740), (1240, 16470), (1350, 15128), (1395, 14640), (1464, 13950), (1488, 13725), (1525, 13392), (1550, 13176), (1647, 12400), (1674, 12200), (1800, 11346), (1830, 11160), (1860, 10980), (1891, 10800), (2160, 9455), (2196, 9300), (2232, 9150), (2325, 8784), (2440, 8370), (2480, 8235), (2700, 7564), (2745, 7440), (2790, 7320), (2928, 6975), (3050, 6696), (3100, 6588), (3294, 6200), (3348, 6100), (3600, 5673), (3660, 5580), (3720, 5490), (3782, 5400), (4185, 4880), (4392, 4650), (4464, 4575)]